How do chimpanzees camouflage?

Yes, definintely. There have been many Primatologists who wrote about walking through the jungle past an entire tree full of Chimps without noticing. This is partly due to the fact that they are very quiet creatures by nature. Of course the dark color of their fur helped them to blend in with the shadows. However, they are not totally invisible as they are routinely found by hunters and Primatologists.